Plow.



G. C. BINGHAM.

PLOW.

APPLICATION FILED DEC. 31,1918.

Patented Apr. 22,1919.

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8 v F k WWW Wm ATTORNEY G. C. BINGHAM.

PLOW. APPLICATION FILED mac. a1, 1918.

1,301,365,, Patented Apr. .22, 1919.

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INVENTOR We @0401? W a 442 :2 ATTORZ I WM um: urns ca. Imam-Luna. NJ!" Moran G. C. BINGHAM.

PLOW.

APPLICATION FILED DEC. 3!, I9IB.

Patented Apr. 22, 1919.

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INVENTOR e g M BY 7 .7 %%a/% ATTORNEY G. C. BINGHAM.

mow. APPLICATION FILED DEC. 31. 1918' 1,3013365, Patented Apr. 22, 1919 5 SHEETS-SHEET 5 flI/H p T Q INVENTORY Bf? 7 W M W WW ATTOR N EV UNTTED STATES PATENT @FFTQE.

GEORGE COWLEY IBINGHAM, OF HEYBRIDGE, MALDON, ENGLAND, ASSIGNOR OF ONE- HALF EDMUND ERNEST BENSALD, 0F MALDON, ENGLAND.

PLOW;

Specification of Letters Patent.

Patented Apr. 22, 1919.

Application filed December 31, 1918. Serial No. 269,141.

,plows intended for use with motor tractors and it has for its object improved means for raising and lowering the plow as required; as for instance when approaching and leaving a headline.

For this purpose a wheel, by preference the land wheel, is mounted on a stem or slide adapted to slide in a bracket, secured to a convenient part of the plow, in such a manner that the wheel can rise and fall vertically.

.An endless chain runs on a sprocket wheel mounted on the boss of the land wheel, and a second sprocket wheelis mounted on the top of the stem or slide of the land wheel so that when said chain is stopped by suitable means the sprocket wheel on the land wheel continuing to draw down the chain as it rotates, draws downwith it the land wheel stem or slide and land wheel this raising the plow.

Suitable catches are provided for stopping the travel of the endless chain and for holding the land wheel and its slide in either its raised or lowered position, and these are operated through suitable connections from the drivers seat so that the raising and lowering of the plow is under his immediate control.

The accompanying drawings illustrate the practical application of my invention and I will further describe the same with reference thereto.

Of the drawings Figure l is a side eleva- 7 tion, and Fig. 2 an end elevation of my improved means for raising and lowering the land wheel of a plow, while Figs. 3 and 4 and 5 and 6 are respectively a front and a side elevation and a side elevation and a plan of the catch and operating levers de 'tached. Figs. 7 and 8 represent a side elevation and end elevation of a modified form of such mechanism wherein both the land wheel and furrow wheel are raised and lowered as desired.

As shown in Figs. 1, 2, 7 and 8, the land wheel A. is journaled in a member or standard B which is adapted to slide in a bracket C on the plow frame 1). To insure rigidity this standard is provided with a parallel extension B which also slides in a suitable guide on the plow frame. The upper end of this carries a housing E having journaled therein a sprocket wheel F on which, and on a second sprocket wheel G an endless chain H runs.

Pivoted in the bracket C on the plow frame are two catch levers K. L. (the former shown, detached in Figs. 3 and 4;) which are held in position by a spring M so that they normally occupy positions wherein they can engage adjustable stops N O. on the stand and B. These two levers are adapted to be operated by a third lever P (shown detached in Figs. 5 and 6) which lever also carries a clutch tooth p so'placed that it may be brought to engage the endless chain H.

The position of the mechanism as shown is that in which the plow is raised, and is so held by the catch lever K engaging the stop N on the standard B.

The operation of the mechanism shown is as follows :-To lower the plow from the raised position as shown a cord 0 extended from the drivers seat and connected to the upper arm P of the lever P is pulled thereby operating the lever to cause a cam face 1? thereon to engage a pin on the catch lever K and so operate same as to cause it to release the stop N on the standard B and to allow the latter to slide in the bracket C until the plow rests on the ground when the catch leverL engages the lower stop 0 and prevents the plow rising when in work. The land wheel A is thus raised and the plow lowered.

If new it is desired to again raise the plow, as for instance when approaching or leaving a headland, a second cord, extending from the drivers seat and connected to the lower arm P on the lever P, is pulled and the lever so operated that an arm P thereon engages a pin on the lower catch lever L and so operates said lever as to cause it to release the stop 0 on the standard B.

it the same time the clutch tooth P on saidlever P is brought into engagement with the endless chain so stopping its travel and causing the sprocket wheel on the land wheel, as the latter rotates, to draw down the chain and with it the upper sprocket wheel its housing, and standard B and consequently the land wlheel A; thereby raising the plow. When the frame hasbeen fully raised, the catch lever K automatically engages the stop N.

In the modified form of mechanism. shown in Figs. 7 and 8 the endless chain and catch and releasemechanism are similar to that above described, the parts H, K, L, and M .c'orresp'oncling respectively with the parts, H, K, L, and M of Figs. 1 and 2, but the standard B is arranged to slide in a guide C hingedat its bottom extremity in a bracket Ron the plow frame. The hubs of the land and furrow wheels are also connected by rods or arms S to a bar T journaled across the plow frame so that they are raised and lowered together. The connections between said arms S ah'd cross bar T are made through quadrants U so that the relative heights on the land and furrow wheels may be varied as desired.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that I claim 1.,1The combination 7 of an implement frame, a standard vertically movable thereon, a ground wheel on the standard, a sprocket wheel at the upper end of the standard, anendless-chain passing over said sprocket wheel and operatively connected to the ground wheel, a catchlever connected with the frame and having a chain engaging catch and means for moving the lever to engage the catch with the chain to raise the frame andfa catch automatically engaging the standard to retain the. frame in raised position.

2. The cdmbinatio'n of an implement frame, a standard vertically movable thereon, aground wheel on the standard, a sprocket wheel at the upper end of the standard, an endless chain passing over said sprocket wheel and operatively connected to the ground wheel, a catch lever connected with the frame and having a chainengaging catch and means for moving the lever to en- .gage the catch with the chain to raise the,

frame.

3. In a plow, the combination of a pair of sprocket wheels a standard upon which said wheels are mounted, a continuous sprocket chain passing over said wheels, means-for rotating said wheels on movement of the plow, an implement frame slidably assodisthe upper part ofthe standard, an endless chain passing over said sprocketwheel and arranged to be drlven by the other wheel, means located on the lmplement frame for engaging said chain to effect movement of the frame with respect 'to the standard,

catches on said frame arranged to engagesaid standard in certain positions, -ancl means for automatically disengaging the aforesaid means.

5. The combination of an implement frame, a standard vertically niovable th'ereon, a ground wheel "on the standard; a sprocket wheel at. the upper "end "of "the standard, an endless chain passingover said} sprocket wheel and operatively connected to the ground wheel, a catch lever connected with the frameandh'a'ving chain engaging catch, means for movin-g'the 'lever to-engage the catch with the chain to raise thef rame,"

and means for automatically disengaging said catch when the frame lias'beeh-raised to a predetermined point.

In testimony whereof I- have signed iny name to this specification in the two subscribing witnesses. V V

GEORGE. oowLEY. BINGHAM.

Witnesses:

J. PHiLLIPs CRAWLEY, H. C. CARPENTER.

presence of Copies 'o fth is patent may be obtainelf'for five cents each, by addressing the Commissionerbf Patents;

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